ENGINEERING STRESS VS STRAIN CURVE TO TRUE STRESS VS STRAIN CURVE USING CONSTANT VOLUME ASSUMPTION¶
Converts an engineering stress–strain curve to a true stress–strain curve using the constant-volume (incompressibility) assumption. Supports uniaxial tension, compression, and anisotropic tension loading types, and can convert either or both axes independently.
When to use¶
Classification: process.
Tagged: anisotropic, compression, constant_volume, curve_transform, engineering_stress, incompressibility, material_conversion, poissons_ratio.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Engineering Stress Strain Curve | engineeringstressstraincurve | vector | — | Engineering stress vs. strain input curve (X = engineering strain [mm/mm], Y = engineering stress [MPa]); the primary curve to be converted to true stress–strain. | |
| Axis | axis | string | both | Axis or axes to convert: ‘both’ converts engineering strain→true strain (X) and engineering stress→true stress (Y); ‘x’ converts strain axis only; ‘y’ converts stress axis only; defaults to ‘both’. | |
| Poissons Ratio | poissons_ratio | scalar | 0.0 | Poisson’s ratio (dimensionless, 0–0.5) used to account for volumetric compressibility; default 0.0 corresponds to the strict constant-volume (incompressible) assumption. | |
| Loading Type | loading_type | string | tension | Loading regime: ‘tension’ (default uniaxial), ‘compression’, or ‘tension_anisotropic’ (anisotropic strains — requires lateral and transversal strain curves to also be provided). | |
| Eng Stress Vs Transversal Strain | eng_ss_vs_transversal_strain | vector | — | Engineering stress as a function of transversal strain curve (X = transversal strain [mm/mm], Y = engineering stress [MPa]); required only when loading_type is ‘tension_anisotropic’. | |
| Eng Stress Vs Thickness Strain | eng_ss_vs_thickness_strain | vector | — | Eng stress provided as function of thickness strain <a class=’btn btn-xs btn-default’ target=’_blank’ href=’https://www.d3view.com/docs/master/workflows/Glossary.html#curveinput’> <i class=’fa fa-external-link’> </i> View more </a> |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curve_engtotruestress_output_1 | curve_engtotruestress_output_1 | vector | Converted true stress vs. true strain curve (X = true strain [mm/mm], Y = true stress [MPa]), computed from the input engineering curve using the selected axis, loading type, and Poisson’s ratio settings. |
Disciplines¶
- data.curve.transform
- engineering.material.characterization
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curve_engtotruestress
Auto-generated from transformation schema. Worker id: curve_engtotruestress. Schema hash: c311afef3a51. Hand-curated docs in workerexamples/ override this page when present.